In this photo provided by Steve Fisch, Michael Snyder, professor and chair of genetics at the Stanford University School of Medicine sports wearable gadgets. Wearable gadgets gave a Snyder an early warning that he was getting sick before he ever felt any symptoms of Lyme disease. Interest in wearable sensors is growing along with efforts to personalize medicine, as scientists learn how to tailor treatments and preventive care to people's genes, environment and lifestyle. The sensors are expected to be a part of the National Institutes of Health's huge “precision medicine” study, planned to begin later this year. (Photo by Steve Fisch via AP Photo)

A Syrian boy runs while carrying bread following a reported airstrike by government forces, in the Syrian town of Binnish, on the outskirts of Idlib, on January 12, 2017. At least 22 jihadists were killed in air strikes on Idlib province over the past 24 hours, the Syrian Observatory for Human Rights said. (Photo by Omar Haj Kadour/AFP Photo)

Free Syrian Army fighters rest beside a pick-up truck mounted with a weapon near Qabasin town, during an offensive against Islamic State fighters to take control of Qabasin town, near the northern Syrian town of al-Bab, Syria January 12, 2017. (Photo by Khalil Ashawi/Reuters)

A Free Syrian Army fighter takes a selfie near Qabasin town, during an offensive against Islamic State fighters to take control of Qabasin town, near the northern Syrian town of al-Bab, Syria January 12, 2017. (Photo by Khalil Ashawi/Reuters)

A portable toilet sits submerged in floodwaters at a vineyard on January 11, 2017 in Forestville, California. A new round of storms are bringing heavy rains and flooding to Northern California just days after rain and snow storms pounded the region bringing much needed water to drought stricken California. (Photo by Justin Sullivan/Getty Images)

With Russian River waters rising, Dustin Coupe of Guerneville talks with an operator via phone booth on River Road in Guerneville, Calif., Wednesday. January 11, 2017. Dozens of Northern California residents have been rescued by boats and firetrucks from flooded homes near Hollister, California as a drought-busting series of storms moved out of the region. Days of rain and snow have toppled trees and forced people out of water-logged homes. (Photo by Kent Porter/The Press Democrat via AP Photo)

A pedestrian jumps over a puddle on the pavement outside the Houses of Parliament in central London on January 12, 2017. Severe weather warnings were in place as heavy rain, snow and blizzard conditions sweep parts of Britain. (Photo by Daniel Leal-Olivas/AFP Photo)

Singer Enrique Iglesias, center, and Cuban singer Descemer Bueno dance on top of a bus during the filming of their video in Old Havana, Cuba, Wednesday, January 11, 2017. Latin pop star Enrique Iglesias is in Cuba to film his latest music video for an upcoming single to be released later this year. (Photo by Ramon Espinosa/AP Photo)

Action over fences at Taunton Racecourse on January 11, 2017 in Taunton, England. (Photo by Alan Crowhurst/Getty Images)

A Taxi drivers' protest gridlocks Bank junction in London's financial district with their black cabs, forcing cyclists and pedestrians to weave around the stopped vehicles during the first UK snows of the winter, on 12th January 2017, in the City of London, England. The drivers are protesting that taxis and other traffic will be banned from here, one of Londons most notorious junctions in a ground-breaking road safety measure to start in April. Only cyclists and buses will be allowed to use Bank junction between the hours of 7am and 7pm after the City of London Corporation after a series of cycling deaths at this location, (Photo by Yui Mok/PA Wire)

Pilgrims stand in queue to receive free evening meal at a transit camp on the way to Gangasagar, in Kolkata, India, Thursday, January 12, 2017. Thousands of Hindu pilgrims are expected to take the annual holy dip at Gangasagar, where the Ganges River reaches the Bay of Bengal, on the auspicious Makar Sankranti festival day that falls on Jan. 14. (Photo by Bikas Das/AP Photo)

A woman clears the path as cold weather sweeps across much of the UK on January 12, 2017 in Carrbridge, Scotland. The Met Office has issued a yellow be aware warning for much of the country, as snow and high winds are expected to cause disruption until late on Friday. (Photo by Jeff J. Mitchell/Getty Images)

People gather to look at water flooding the area around the landmark “Altonaer Fischmarkt” (Fish Auction Hall) in Hamburg, Germany, 12 January 2017. Low “Dieter” has swept over the north of Germany. (Photo by Carsten Koall/EPA)

Amy Adams attends a ceremony honoring her with a star on the Hollywood Walk of Fame on Wednesday, January 11, 2017, in Los Angeles. (Photo by Rich Fury/Invision/AP Photo)

Actresses Jacqueline Robbins and Joyce Robbins attend attends the premiere of Netflix's “A Series of Unfortunate Events” at AMC Lincoln Square Theater on January 11, 2017 in New York. (Photo by Angela Weiss/AFP Photo)

In this Thursday, May 22, 2008, file photo, a tornado touches down in Riverside, Calif. On Tuesday, January 10, 2017, a twister touched down south of the state capital and registered EF0, at the lowest edge of the tornado scale that goes up to EF5. The Enhanced Fujita (EF) scale measures the intensity of tornadoes in the U.S. and Canada based on damage caused. (Photo by Michael Ritter/AP Photo)

Djamila Boubakeur, a police lieutenant (R), kneels as she watches a homeles girl eat during “Winter Soup”, a charity campaign to distribute meals by police to homeless people, in Algiers, Algeria January 11, 2017. (Photo by Zohra Bensemra/Reuters)

2017 Paraguay-Bolivia-Argentina Dakar rally, 39th Dakar Edition, Eighth stage from Uyuni, Bolivia to Salta, Argentina on January 10, 2017. Children cross a river as Luis Fernando Barbery of Bolivia drives his Toyota with his copilot Salazar Abel. Picture taken January 10, 2017. (Photo by Ricardo Moraes/Reuters)

Workers stand by a flood-damaged train line in Bang Saphan district in Prachuap Khiri province, Thailand January 11, 2017. (Photo by Reuters/Dailynews)

Lawmakers from ruling AK Party and the main opposition Republican People's Party (CHP) scuffle during a debate on the proposed constitutional changes at the Turkish Parliament in Ankara, Turkey, January 12, 2017. (Photo by Reuters/Stringer)

Japanese Prime Minister Shinzo Abe bows his head before the Philippine flag during a welcome ceremony at the presidential palace in Manila, Philippines January 12, 2017. (Photo by Erik De Castro/Reuters)

People take pictures of a waxwork of Bollywood actor Amitabh Bachchan at a photocall for the new Madam Tussaud's waxwork museum in New Delhi, India January 12, 2017. (Photo by Cathal McNaughton/Reuters)

A man carries a log of a tree on his shoulder as he walks on a snow covered hill on a cold winter day at Faqir Gujri, on the outskirts of Srinagar, India January 12, 2017. (Photo by Danish Ismail/Reuters)

Newly recruited Houthi fighters parade before heading to the frontline to fight against government forces, in Sanaa, Yemen January 12, 2017. (Photo by Khaled Abdullah/Reuters)

A newly recruited Houthi fighter displays skills during a parade before heading to the frontline to fight against government forces, in Sanaa, Yemen January 12, 2017. (Photo by Khaled Abdullah/Reuters)

Justin Kudoke works on a cast of a Berlin Bear award for the upcoming Berlinale International Film Festival at the Noack foundry in Berlin, Germany, January 12, 2017. (Photo by Fabrizio Bensch/Reuters)

A municipal worker washes a ceramic reproduction of Spanish artist Pablo Picasso's Guernica, in the Basque town of Guernica, northern Spain, January 12, 2017. This year marks the 80th anniversary of the mural, painted in 1937 following the aerial bombing of the town by German and Italian aviation allied to Nationalist forces led by General Franco. (Photo by Vincent West/Reuters)

Iraqi army members clash with Islamic State militants from the roof of a building, eastern Mosul, Iraq, January 12, 2017. (Photo by Alaa Al-Marjani/Reuters)

A man pushes a cart with a wounded from the clashes, eastern Mosul, Iraq, January 12, 2017. (Photo by Alaa Al-Marjani/Reuters)

A man smokes a waterpipe on the street during a battle with Islamic State militants, eastern Mosul, Iraq, January 12, 2017. (Photo by Alaa Al-Marjani/Reuters)

Iraqi security forces detain a suspected Islamic State fighter during a military operation on the eastern side of Mosul, Iraq, Thursday, January 12, 2017. (Photo by Khalid Mohammed/AP Photo)

Men play chess on a winter day in a park in central Kiev, Ukraine, January 12, 2017. (Photo by Gleb Garanich/Reuters)

A man climbs an artificial wall of ice in the city of Liberec, Czech Republic, January 12, 2017. (Photo by David W. Cerny/Reuters)

A man performs holding a table in his mouth during a circus show in Karachi, Pakistan, January 12, 2017. (Photo by Akhtar Soomro/Reuters)

Firefighters sift through debris at the scene of an overnight house fire, where several children were presumed dead and others including the mother injured, in Baltimore, Maryland, U.S., January 12, 2017. (Photo by Bryan Woolston/Reuters)

Members of the military wait for an Army carry team to move a transfer case containing the remains of Spc. Isiah L. Booker at Dover Air Force Base, Del., Wednesday, January 11, 2017. According to a statement from the Department of Defense, Booker of Cibolo, Texas, died Jan. 7, in a non-combat related incident while in Jordan supporting Operation Inherent Resolve. (Photo by Matt Rourke/AP Photo)

A keeper measures a hippo on January 12, 2017 in Hannover zoo, Germany. (Photo by Julian Stratenschulte/AFP Photo/DPA)

A musician beats the Conga drum, which is also known as Tumbadora, in a street decorated with festive installations and illumination lights during a snowfall in central Moscow, Russia, January 12, 2017. (Photo by Sergei Karpukhin/Reuters)

A supporter of opposition leader Henrique Capriles argues with a National Guard officer outside of the Comptroller General building in Caracas, Venezuela, Thursday, January 12, 2017. Capriles said Wednesday that the Comptroller General seeks to disqualify him politically, calling him for a audience which could leave the Venezuelan opposition without one of its main figures for an eventual election. 2017. (Photo by Ariana Cubillos/AP Photo)

Rapper Pitbull performs onstage during Nickelodeon's celebration of the new Burbank facility on January 11, 2017 in Los Angeles, California. (Photo by Charley Gallay/Getty Images for Nickelodeon)

A view of motorcyclists with “xXx” flags in Mumbai at Chhatrapati Shivaji Intl Airport for the Paramount Pictures Title “xXx” on January 12, 2017 in Mumbai, India. (Photo by Ritam Banerjee/Getty Images for Paramount Pictures)